baber/WOPTO huggingface dataset:
Patent GB-1456045-A (GB)
Title: Fixing apparatus for fixing bolts and the like
IPC: B25C1/14
Filed: 1973-12-20
Abstract: 1456045 Safety devices for manually operable sliding breech and barrel smallarms P TERMET 20 Dec 1973 [26 Dec 1972] 59014/73 Heading F3C A smallarm, which fires a projectile, e.g. bolt, rivet, or the like, has a drive piston 1 which is exposed at one end to an explosive cartridge 11 and which drives, at the other end, the intended projectile; a barrel, a muzzle, a cartridge chamber 8, a breech 9, and a striker 10 are together retractable against a spring within a tubular envelope, rigidly attached to a stock carrying a trigger 12, to render the trigger operable, so that the striker can only be actuated for firing when the outer muzzle end projects from the envelope by a predetermined maximum distance. In Fig 2, the muzzle 5, the barrel 4, the cartridge chamber 8, the breech 9, the striker and a pin 21 can only be retracted for firing by pressing the muzzle end against a surface 28 for receiving the projectile, when a safety button 26 is depressed to accept a longitudinal pin connected to the breech. When the muzzle end is within the predetermined distance, a head 22 of the pin 21 engages a fork 24 coupled to the trigger 12 for retraction to allow a spring controlled member 19 to actuate the striker. The predetermined distance can be increased for firing when the barrel is at a larger angle to the surface 28 than in Fig. 2 by rotation of the barrel 4 and the muzzle 5 in threads 6 so that a sleeve, carried by the barrel and having a tapered end engaging a complementary surface of the chamber 8, is moved from the chamber so that some explosion gases can escape through the resulting gap to reduce firing power and danger from a ricochet. This feature is also in the embodiment of Fig. 6, but here the muzzle 33 and the barrel 32 are independently rotatable, the latter by a sleeve 48 via a pin 36. Axial positioning of the muzzle to the chamber 8 is achieved by sleeves 51, 42 for retraction. Power reduction by barrel rotation need not necessarily alter the predetermined muzzle end-envelope distance, since a dog 34 axially, but not rotationally, fixed with the barrel 32 has an axial clearance 55 with respect to a dog 35 of the muzzle 34.
Patent GB-1396179-A (GB)
Title: Sunglass lens construction and method
IPC: G02C7/10
Filed: 1972-12-21
Abstract: 1396179 Sunglasses R J NELSON 21 Dec 1972 [29 Dec 1971] 59155/72 Heading G2J A sunglass lens made of plastics material has a viewing pane 12 flanked by masking panes 11,13 which contain louvers. It is formed from a plane laminate in which the louvers extend perpendicular to the plane, and which is then heated and bent so that in the finished lens the louvers are tipped upwards and downwards respectively above and below the viewing pane 12 at progressively increasing angles to the horizontal as their distance from the viewing pane 12 increases. The front surface of the lens carries a scratchresistant layer such as cellulose acetate butyrate or polycarbonate. The rear face carries a thicker strengthening layer of the same material tinted grey. The lens carries a silicone rubber or moulded vinyl nose piece 29, and is completely surrounded by peripheral foam sealing means 26, 27. The lens is secured to the head of the wearer by straps 21,22 which are fastened together by multiple hook material.
Patent GB-1454500-A (GB)
Title: Separation of gases
IPC: F25J3/02
Filed: 1972-12-21
Abstract: 1454500 Separating gases PETROCARBON DEVELOPMENTS Ltd 5 Dec 1973 [21 Dec 1972] 59165/72 Heading F4P A method of separating liquid chlorine from a feed mixture of chlorine, hydrogen and air in ratio 90À6 : 3À1 : 6À3 and in which it is desired to keep the proportion of hydrogen below 5%, this being the concentration which causes the mixture to become explosive, comprises distilling the mixture in column 16 within a temperature range above the critical temperature of hydrogen, such distillation occurring in the presence of CO 2  which is inert with respect to the mixture and is condensible, as is chlorine, above the critical temperature of hydrogen, and the CO 2  being provided as reflux for the distillation and in proportions such that the concentration of hydrogen does not reach the explosive point. As shown in Fig. 1, liquid CO 2  is vaporized in exchangers 18, 14 and expansion valve 19 before being combined with the feed, the combination being warmed in exchanger 13, compressed at 11 and cooled at 12, 13, 14, 15 to approximately -23‹ C. The mixture thus enters the distillation in a partially liquefied state, liquid chlorine being taken from the bottom. The liquid CO 2  fed to reflux condenser 18 is completely evaporated therein, causing CO 2  from the column 16 to condense as reflux. The overhead from column 16 of CO 2 , hydrogen and air is warmed to ambient temperature at 14, 13 and vented to atmosphere. Reboiler 17 is also provided. The liquid CO 2  can be introduced directly as reflux to column 16 (Fig. 3, not shown).
Patent GB-595042-A (GB)
Abstract: 595,042. Condensers. UNITED INSULATOR CO., Ltd., and WESTCOMBE, N. G. July 11, 1945, No. 17709. [Class 37] A trimmer condenser comprises a flat ceramic disc 20 coated on one side with a metal electrode 28 moving over the surface of a ceramic plate 14, having on one side two metal electrodes 11, 12 formed as arcuate coatings of different radii connected by extensions 16, 17 to terminals 18, 19. The electrode 28 is formed of two corresponding arcuate portions joined at 30 to form a continuous coating in an annular groove 21 between ridges on the disc 20, and a pivot pin 26 passes through central apertures in the ceramic plates, allowing relative rotation by a tool engaging slots 27 in an inner ridge 23 of the disc 20 to vary the capacity. The arcuate electrodes 11, 12 subtend an angle of less than 180 degrees, and the central aperture is nearer the electrode of smaller radius. The terminals 18, 19 over the silvered metal coatings have platinum faces for soldering connections 33a thereto. A spring washer 32 is placed between the expanded end of the pivot pin and the plate 14, which has a recess 15 on the non-coated side. Specification 595,012 is referred to.
Patent GB-1404570-A (GB)
Title: Circuit for extracting power from a current-carrying line
IPC: H04M19/08
Filed: 1971-12-22
Abstract: 1404570 Substation circuits THORNERICSSON TELECOMMUNICATIONS (MFG) Ltd 11 Dec 1972 [22 Dec 1971] 59665/71 Heading H4K Power is derived from a subscribers line by means of a circuit consisting of two parallel opposed paths 26, 24 and 30, 28 respectively, each containing a diode and a transistor, one (negative) output terminal 32 being connected to the common junction of the diodes and transistors and the other (positive) output terminal being connected to the other electrode of the currently conductive diode. For a current flow from terminal 20 to 22, diode 26 and hence transistor 24 are conductive so that a useable voltage of approximately 0À7 volts is developed across diode 26. This may be used, as shown, for enabling transistor 52 of a blocking oscillator in the subset. For current in the opposite direction, oscillator transistor 54 would be enabled. The polarity insensitive circuit is said to drop only 0À7 volts for the diode plus 0À05 volts for the transistor as opposed to a conventional full wave bridge which drops 2À1 volts of which only the 0À7 volts for the load circuit is useful.
Patent GB-1237224-A (GB)
Title: Plastically deformable damping member for motor vehicle safety belts
IPC: F16F7/12
Filed: 1968-12-16
Abstract: 1,237,224. Vehicle safety harness. KLIPPAN G.m.b.H. 16 Dec., 1968 [15 Dec., 1967], No. 59682/68. Heading A3V. [Also in Division F2] A plastically deformable damping member 8 for a vehicle safety belt 6 comprises at least one metal tape 8 or 9 withdrawable from a storage coil and continuously deformable by a fixed reaction member 19 when the belt 6 is drawn from the shaft 4 on which it is wound, an end of each tape being connected to the shaft at 7 so that withdrawal of a length of belt from the shaft causes each tape to wind on to the shaft. The shaft 4 is rotatably mounted between chassis walls 2, 3, and two tapes 8, 9 are held adjacent walls 2, 3 by the arms 15, 16 of a U-shaped bracket. The reaction member 19 is located, as shown, to maximise the work of deformation performed on the tapes during rotation. Member 19 is so spaced from shaft 4 that the tapes abut member 19 when coiled on to shaft 4, avoiding sudden jolts otherwise arising when the ends of the tapes are reached. A hole 22 may be provided in the chassis base to allow room for the tapes when on shaft 4. The belt 6 may be anchored to the shaft 4 by passing an end through slot 5, or may be connected, preferably detachably, to a steel cable or wire wound round shaft 4, Fig. 6 (not shown). The cross-sectional area of the tapes may be varied along their lengths to obtain any desired damping characteristic. The chassis may be bolted to the vehicle by a bolt (not shown) passing between arms 15, 16, and a plastics cover may be provided.
Patent GB-1413922-A (GB)
Title: Cooling system for semiconductor devices
IPC: F28F13/00
Filed: 1973-12-28
Abstract: 1413922 Heat pipes CKD PRAHA OBOROVY PODNIK 28 Dec 1973 [28 Dec 1972] 60079/73 Heading F4U [Also in Division H1] A semi-conductor cooling device comprises a chamber 10 containing a porous member 3 which is at least partially immersed in a liquid coolant 12 a soft, yielding wall 2 of the chamber 10 being pressed by an external force into contact with the semi-conductor device 1, and the porous member 3 being biased by an internal spring 8 against the internal face of the wall 2. The other face of the semi-conductor device 1 is cooled by a similar heat-pipe, the two heatpipes being joined by tie-rods 14 in the periphery of a rigid support ring 5. The chamber 10 has cooling fins 13 and a duct 11-through which the coolant 12 is introduced and the chamber 10 evacuated. The inner surface of the chamber 10 is lined with a coating 9 to facilitate condensation of the coolant 12. The porous member 3 and the wall 2 are in good thermal contact via a heatconducting layer 4. The porous member 3 has grooves formed in its surface nearest the wall 2.
Patent GB-1417020-A (GB)
Title: Transducer element
IPC: G01L9/00
Filed: 1972-12-29
Abstract: 1417020 Strain gauge transducers BOFORS AB 29 Dec 1972 [29 Dec 1971] 60169/72 Heading G1N A transducer element suitable for measuring gas or liquid pressures comprises an outer member 1 and a coaxial inner member 2 and an annular membrane 3 joining the two members at one end, and beams 4 perpendicular to the membrane 3 and joining the members 1, 2, with strain gauges 5 carried on the beams. Relative axial displacement of members 1 and 2 sets up shear in the beams which is measured by the gauges. These may be connected in a bridge circuit. Various configur-  ations of the beams are disclosed Figs. 9 and 10 (not shown) and three or four beams may be provided Fig. 3 (not shown). An upper membrane may also be provided Figs. 5 and 6 (not shown), and the arrangement may have channels for cooling fluid.  The arrangement may be made from one piece of metal (apart from the strain gauges) and may be of stainless steel.
Patent GB-1298829-A (GB)
Title: Glass panels
IPC: E04C2/54
Filed: 1969-12-21
Abstract: 1298829 Glass panels GLAVERBEL 12 Dec 1969 [10 Feb 1969] 60778/69 Heading C1M [Also in Division E1] A hollow panel comprises at least two components 1, 2, Fig. 2, each in the form of a sheet of glass with integral stiffening ribs 7, 8, located internally of the panel serving to increase the resistance of the sheet to bending under flexing forces applied externally to the central part of the panel, the components are secured together at least at a marginal zone of the panel by an endless marginal wall 10 formed by the rib or ribs on one or both of the sheets or by a strip (39, Fig. 6, not shown) interposed between margins of nested sheets, and the integral stiffening ribs of each of the components consist of or include ribs which extend at least in one direction across the full extent of the space peripherally bounded by the marginal wall. Sealing material may be applied into the channel 11 formed between the marginal walls 10. The sealed space may be maintained at a pressure of, say, not more than 0À5 kg./cm.<SP>2</SP>. It is preferred that the sheets are interconnected by stiffening ribs tapering from root to top with an angle of taper of not more than 20 degrees and of a height at least 1¢ Î base thickness. Portions of a sheet may have different lighttransmitting or reflecting properties, as illustrated in Fig. 3. The sheets may be coloured and wired. A panel, see Figs. 4 and 5, suitable as part of the glazing of a wide bay window has patterned, clear and prism zones A, B and C. The inner cell surfaces 34, Fig. 5, facing the prisms 33 are made slightly light-diffusing.
Patent GB-2023253-A (GB)
Title: Tube Joints
IPC: F16B17/00
Filed: 1978-06-14
Abstract: Contiguous tubes 4, 5 for instance of guard fencing are connected by nipping their material into circumferential grooves 2 to 3A of a connector 1 and may be supported by passage through sockets 6, 8. Connectors 1 comprise bars having circumferential grooves extending round their peripheries; they may be scribed with a circumferentially extending centre mark between grooves or be secured to a socket. Three or more of the bars may each be secured at one end to a block. <IMAGE>
Patent GB-2023979-A (GB)
Title: Dental X-Ray apparatus
IPC: A61B6/14
Filed: 1978-06-19
Abstract: Intra-oral X-ray apparatus which reduces the number of exposures necessary to obtain panoramic dental radiographs comprises an electron gun 20, a tubular target carrier 24 projecting from the gun along the beam axis 36 and carrying at its distal end a target 23 surrounded by a shield 31 of X-ray opaque material extending forwardly and laterally of the target and having surfaces 80, 81 which define a wedge or cone-shaped radiation pattern delimited vertically substantially by the root tips of the patient's teeth 32 and 33. A film holder 34 is located externally of the patient's mouth. A disposable member can fit on the target carrier to depress the patient's tongue out of the radiation pattern and to further shield the roof of the mouth. The electron beam can be magnetically deflected, Figures 4 and 5, to change the X-ray beam direction. <IMAGE>
Patent GB-2027513-A (GB)
Title: Method and apparatus for sealing a pipeline leak
IPC: F16L55/175
Filed: 1978-08-08
Abstract: A method and apparatus are provided for sealing leaks which occur at the flanged connections of pipelines, wherein a wire 42 is wrapped about the upper surface of the flange connecting bolts 12,21,31 to fill the gap between the flanges 13 and above the bolts, an injection valve 23,24 is installed for relieving pressure from inside the gap while the wire is being wrapped and for injecting a sealant to the interior of the gap beneath the wire wrap, and a sealant is provided for filling the gap beneath the wire wrap for stopping the leak and combining with the wire wrap to provide a permanent repair for the leak. <IMAGE>
Patent GB-2004391-A (GB)
Title: Method of controlling molten steel level in mold of continuous casting apparatus
IPC: B22D11/20
Filed: 1978-08-22
Abstract: A method of controlling the level of molten steel in the mold of a continuous casting apparatus comprises sensing the arrival of the molten metal level at a predetermined value at the start of operation of the apparatus, driving dragging rolls, from that point of time onward, at a rotational speed based on a preset value of initial roll speed setting, thereafter sensing when the level has reached the neighbourhood of a higher preset level or measuring a fixed length of time, and, from that point onward, inputting the deviation of the molten metal level in the mold from the preset level to a controller, and driving the dragging rolls by means of signals which combine the output of the controller with the initial roll speed setting. <IMAGE>
Patent GB-2323680-A (GB)
Title: Focussing laser beams
Inventor: CAMERON EVAN STUART
IPC: G02B13/02
Filed: 1978-11-24
Abstract: A laser transmitting and/or receiving system includes an astronomical telescope with an element 12 having at least two constituent lenses 20 and 21, together serving partially to define an hermetically sealed unit in which a laser beam 15 to traverse the system is to be brought to a focus, the interior of the unit comprising an atmosphere which does not cause attenuation of the incident radiation when subjected to a focussed laser beam therein, for example, air at a pressure of less than 15 newtons per square metre, or nitrogen, possibly at a pressure less than atmospheric.
Patent GB-2012088-A (GB)
Title: Printer
IPC: B41J2/505
Filed: 1978-12-14
Abstract: A printer has a print head movable along a print line by driving means coupled to a pulse generator providing successive position pulses which are fed to the means which energise the print head for printing, so that characters are printed in predetermined positions along the print line irrespective of the scanning speed of the print head. The head may have a column of print needles, successive columns of dots being printed every Nth pulse, where N is selectable to change the font. <IMAGE>
Patent GB-2039585-A (GB)
Title: Door Lock
IPC: E05B59/00
Filed: 1979-01-19
Abstract: A door lock comprises a latch (2), a mechanism for locking the latch which includes a pivotal element (10) having at least one arm (10') engageable with the latch to withdraw it to the open position a locking bolt (13) depressable (into the plane of the drawing) to move into a blocking position to prevent swivelling of the pivotal element to withdraw said latch (2) and a key- operated unlocking lever (17) for moving the locking bolt (13) out of the blocking position to permit swivelling of said pivotal element, the lever having a catch operated by the key. <IMAGE>
Patent GB-2040339-A (GB)
Title: Trapped gulleys particularly for road drains
IPC: E03F5/04
Filed: 1979-01-24
Abstract: A roadside or other gulley pot 1 has a removable dip-tube trap member 4 having a lateral outlet pipes push- fitted in a grommetted hole in the pot wall. The dip tube 4 has a rodding aperture 7 closed by a plug 8 and has a slotted top flange 13 snap-fitted over castellations (Figure 2, not shown) in the pot rim 10. The pot 1, which can be used without the trap member, is preferably of plastics, downwardly tapered for stacking, and provided with external reinforcing flange and ribs. <IMAGE>
Patent GB-2042195-A (GB)
Title: Improvements in or relating to a device for checking wheel alignment
IPC: G01B11/275
Filed: 1979-02-13
Abstract: In a device for checking wheel alignment a vertically directed laser 55, an adjustable reflecting member 89 for directing the beam from the laser horizontally towards a wheel and a chart 125 for determining the deviation of the beam when reflected from a mirror (170) fitted to the wheel on to the chart, are mounted on a pivotable 32 cover 31 of an equipment housing. The equipment is held in an operative position when the cover is open (Figure 2) and is concealed in the housing when the cover is closed (Figure 1). Rotatable and laterally movable wheel supporting means 41 are also disposed in the housing to facilitate correct initial alignment of a vehicle. Such supporting means may include a scissor action elevating arrangement. An apparatus for checking the alignment of each front wheel of a vehicle comprises two such devices. <IMAGE>
Patent GB-2044881-A (GB)
Title: Torsional vibration dampers with series tuning
IPC: F16F15/121
Filed: 1979-03-19
Abstract: A viscous torsional vibration damper for a rotatable shaft has a hub 1 attachable to the shaft, a housing 7 connected to the hub and a fluid damped inertia disc 12 within the housing. A first set of springs 4 for tuning the damper are connected between the housing and the hub and a second set of springs 15-18 for tuning the damper are provided between the inertia disc and the housing. The leaf and coil springs may be interchanged. <IMAGE>
Patent GB-2018397-A (GB)
Title: Valves
IPC: A61M39/26
Filed: 1979-04-11
Abstract: In the valve of Figure 1, the valve seat is defined by two oppositely tapering surfaces 20, 23, while the head 27 of the closure member 12 has oppositely tapering surfaces 31, 32. The surfaces 23, 32 cooperate to provide line contact between the closure member and the valve seat. The taper of the surface 20 is less than that of each of the surfaces 23, 31, 32. The body and closure member are formed of polymeric material and are assembled by forcing the member 12 into the valve body. The valve is particularly for use as a catheter valve or an aerosol valve. <IMAGE>
Patent GB-2027237-A (GB)
Title: Method and arrangement for guaranteeing the coherence of data between masks and other memories on a data-processing system which operates by multiprocessing
IPC: G06F12/0831
Filed: 1979-06-20
Abstract: In an arrangement for ensuring the coherence of data or information in a multiprocessing system, which data or information is recorded in a memory assembly formed by a central memory (MC) and at least two caches stores (C1, C2) associated with respective processors (P1, P2) forming part of the system, when one of the processors belonging to the system alters or updates an item of information, this updated item of information is stored at a single location in the memory assembly, the original non- updated item of information is invalidated in any cache stores in which it may also be present, and any updated item of information is maintained unique in the memory assembly of the system. <IMAGE>
Patent GB-2055456-A (GB)
Title: Improvements in or Relating to Boilers
IPC: F22B7/12
Filed: 1979-07-26
Abstract: A vertical boiler has a cylindrical furnace section 1 arranged concentrically within a shell 2. Annular compartments 14, 15 surround the shell 2 above the furnace section 1, being separated by a division plate 12. Tubes 9 extend from the top of the furnace section 1 to the annular compartment 14 and tubes 10 extend within the shell from the annular compartment 14 to an annular compartment 13 surrounding the shell 2 in line with the bottom of the furnace section 1. Further tubes 11 extend within the shell 2 from the annular compartment 13 to the annular compartment 15; hot gases are discharged from the annular compartment 15 through a chimney 17.
Patent GB-2035789-A (GB)
Title: Improvement in or relating to a holder for a Christmas tree
IPC: A47G33/12
Filed: 1979-08-17
Abstract: A Christmas tree holder comprises a container 1, stabilising feet 5 detachably connected to the container and a cover 7 seated in the open mouth of the container, the cover having a central aperture 2 which accommodates the trunk of a Christmas tree. Four serrated wedges 15 are provided which engage recesses 13 provided in the aperture 12 of the cover 7 and the Christmas tree trunk to secure the Christmas tree in position. Radially inwardly directed flanges (3) are provided at the base of the interior of the container to locate the bottom of the trunk of the Christmas tree. Holes 14 are provided in the cover to enable the container 1 to be filled with water. <IMAGE>